MedPath

Femoral Versus Psoas Continuous Peripheral Nerve Blocks Following Hip Arthroplasty

Phase 4
Completed
Conditions
Hip Arthroplasty
Hip Pain
Interventions
Procedure: Femoral Nerve Block vs. Psoas Compartment Nerve Block
Registration Number
NCT00967980
Lead Sponsor
University of California, San Diego
Brief Summary

The purpose of this research study is to determine if the insertion site of a perineural catheter, or tiny tube placed next to the nerves that go to the hip which you will have surgery, affects the amount of pain relief that is experienced after surgery.

Detailed Description

To determine the association between perineural catheter location and postoperative analgesia, analgesic requirements, ambulatory distance, and flexion following hip arthroplasty.

Primary Hypothesis: Differing the catheter insertion site (femoral vs. psoas compartment) for a perineural local anesthetic infusion is not associated with lower pain scores during the 24-hour period beginning the morning following hip arthroplasty.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
50
Inclusion Criteria
  • primary, unilateral hip arthroplasty or hip resurfacing
  • age greater than or equal to 18 years
  • postoperative analgesic plan includes perineural local anesthetic infusion
Exclusion Criteria
  • morbid obesity (BMI greater than 40)
  • chronic, high-dose opioid use
  • history of opioid abuse
  • pregnancy
  • incarceration
  • amu meirp-muscular deficit of the ipsilateral femoral nerve and/or quadriceps muscle
  • inability to communicate with hospital staff

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
1. Femoral Nerve BlockFemoral Nerve Block vs. Psoas Compartment Nerve BlockPatients will be randomized with a computer program to receive a femoral catheter. The catheter will be placed using standard technique. The time of catheter placement will be recorded as well as the pain/discomfort of catheter placement as reported by the patient on a 0-10 scale where 0=no pain/discomfort and 10=worst imaginable pain/discomfort.
2. Psoas Compartment CatheterFemoral Nerve Block vs. Psoas Compartment Nerve BlockPatients will be randomized with a computer program to receive a psoas compartment catheter. The catheter will be placed using standard technique. The time of catheter placement will be recorded as well as the pain/discomfort of catheter placement as reported by the patient on a 0-10 scale where 0=no pain/discomfort and 10=worst imaginable pain/discomfort.
Primary Outcome Measures
NameTimeMethod
Patient's mean pain score (NRS) during perineural infusion as measured by the nursing staff at UCSD and entered in the computer system.24 hours beginning 7:30am day following surgery
Secondary Outcome Measures
NameTimeMethod
Analgesic used, as reported by nursing staff in the UCSD computer system.3 days following surgery
Patient's ambulation distance as recorded by therapist (occupational or physical) in the UCSD computer system.3 days following surgery
Hip flexion, in degrees measured with a standard goneometer, as recorded by therapist (occupational or physical) in the UCSD computer system.3 days following surgery
Infusion duration of pain pump, measured on the pump itself in hours and minutes.3 days following surgery
Duration of hospital stay, in hours, as reported in the UCSD computer system.3 days following surgery
Surgical/anesthetic adverse events as reported by hospital staffday of surgery and 3 days following
Experiences of patient during the infusion and following, as reported to study staff in a phone conversation, one week following surgery.1 week following surgery

Trial Locations

Locations (1)

UCSD Medical Center

🇺🇸

San Diego, California, United States

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